Direct conversion of aromatics into a synthetic steamcracker feed using bifunctional zeolite catalysts

Abstract

Aromatics with 6 to 9 carbon atoms can be converted catalytically with hydrogen on bifunctional zeolites, such as Pd/H-ZSM-5, into a high-quality steamcracker feed, thereby opening a direct route for the utilisation of surplus pyrolysis gasoline.

Pervaporation studies of n-hexane, benzene, mesitylene and their mixtures on zeolitic imidazolate framework-8 membranes

“…A survey published by EPA showed that most of the refiners plan to install additional naphtha pre-fractionation capacities [2]. The catalytic conversion of aromatics as proposed by Weitkamp can be a competing technology [3]. Molecular sieving of n-alkane/aromatic mixtures by nanopore membranes in pervaporation or vapour permeation might be another competing technology to distillation.…”

Enhancement of Sorption Processes in the Zeolite H‐ZSM5 by Postsynthetic Surface Modification

“…[2][3][4][5] These molecular sieves are used not only in catalytic processes such as toluene alkylation, [6][7][8][9] disproportionation, and xylene isomerization, [5,[10][11][12][13] but also for hydrocarbon separation. [14] Shape-selective sorption and transport [10,15,16] of (substituted) aromatic molecules are the key zeolites properties for these applications.…”

Ring Opening of Aromatics

“…It has been demonstrated that there are two process options for achieving the desired conversion [81,82]. It has been demonstrated that there are two process options for achieving the desired conversion [81,82].…”

“…It was only after the introduction of bifunctional zeolite catalysts that a smooth and stable conversion of aromatics into a synthetic steam-cracker feed became feasible [82]. It was only after the introduction of bifunctional zeolite catalysts that a smooth and stable conversion of aromatics into a synthetic steam-cracker feed became feasible [82].…”